Mining-machine.



J. MCDONALD.

MINING MACHINE} APPLICATION FILED MAR. 14. 1911 L52 859 Patented Feb. 4,1913.

5 SHEETS-SHEET 1' N N m awua/wboz J. MODONALD.

MINING MACHINE.

7 APPLICATION FILED MAR. 14, 1911. 1 @52,859, V Patented Feb. 4, 1913.

5 SHEETS-SHEET 2 HllHilll J. MQDONALD MINING MACHINE.

I 4 APPLICATION FILED MAR.14, 1911. I 1,05%359. Patented Feb.4,1913n 5SHEETS-SHEET 3.

J. MCDONALD.

MINING MACHINE.

APPLIOATI'ON FILED MAR. 14, 1911.

L5$85 Patented Feb. 4, 1913.

5 SHBBTFr-SHEET 4.

J. MQDONALD.

MINING MACHINE.

APPLIGATXON FILED MAR. 14, 1911.

lflfig w, Patented Feb.4,1913.

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JOHN MQDONALD, OF SILVER CREEK, PHILADELPHIA,' PENNSYLVANIA.

MINING-MACHINE.

Application filed March 14, 1911. Serial No. 614,417,

Specification of Letters Patent.

To all whom it may concern Be it known that I, JOHN MCDONALD, a citizenof the United States, residing at Silver Creek, New Philadelphia, in thecounty of Schuylkill and State of Pennsylvania, have invented new anduseful Improvements in Mining-Machines, of which the following is aspecification.

The present invention provides a machine designed most especially formining coal, but which may be advantageously employed in miningoperationsgenerally where it is desirable to form cuts in the bed of thematerial to be mined.

The invention relates most especially to mining machinery designed formaking cuts in the strata or bed of the substance to be mined, therebyenabling theready removal of the same to be prepared for market.

The improvement relates to a machine which is adapted both for cuttingand boring into the material, said machine embodying independent framestructures which admit of a variet of adjustments so thatwhile the mainframework is braced in the usual manner the auxiliary frames may beadjusted to admit of properly positioning the outting or boringmechanism, feeding said cutting mechanisms forwardly and subsequentlymoving the'cuttingmechanism to form a straight out so as tobodilyseparate the material to be mined.

The invention consists of the novel features, details' ef constructionand combination of a parts, which hereinafter will be more particularlyset forth, illustrated in the accompanying drawings, andY-poihted out inthe appended claims.

Referring to the drawings, forminga part of the specification,iliigure'1 is a side viewof a mining. machine of special construction embodyingthe .invention. Fig. 2 is a vertical longitudinal section thereof abouton the line 22 of 3. 3 is a horizontal section on. the line 3-3 oFig. 1. Fig. 4 is airontview of the machine. Fig. 5 isaffierticalitransverse section on the line 55 of Fig.2; Fig. 6 is a sideview of the boring tool and the means for receiving the same. Fig. 7 isa detail view of the parts shown in Fig. 6, the boring tool being movedinto vertical position. Fig. 8 is a' rear end view of the boring tool.

Corresponding and like parts are referred to in the followingdescrlption, and indicated in all'the views of the drawings, by the samereference characters. 1 5,

The machine when in 'operatio-n 'is pref erably mounted upon a truck 1",the some} comprising longitudinal and transverse ba'rsf eo arranged toform a substantial-frame off-i.

a part of oi.

a sectional shaft 6, which is journaled near 1 1ts lower end in a frame7 mounted upon the shaft 3 and near its upper end in a frame 8 mountedupon a shaft 9. A sleeve- 10 connects the adjacent ends of the sectionscomprising the shaft 6. When the the sleeve 10 is slipped upon one ofthe to. The beams of the truck frame adapted to receive the wheels 11 ofthe main frame upper sides to receivethe wheels 11 when themachine is inproperposition upon thev truck, thereby preventing casual displacementof the machine. The shaft 9 is mountframe and has an operating crank 13at one end. 'Beve'l gearing let connects the two shafts 6 and 9. Whenthe machine is in position upon thetruck the latter may be which rotatesthe shaft 9, said motion being gearing Mand transmitted to the shaft 3throfigh the gearing 4 and 5, thereby positively rotating the wheels 2secured to said shaft 3.

' The main frame comprises uprights 15, longitudinal beams 16 andtransverse beams tracks. The intermediate longitudinal tically arrangedand provided at its upper end with a hand wheel. The lower end of aswivel joint with a sup lemental frame which is adjustable verticall theengine and operating mechanism. The

supplementaryirame comprises spaced up- Patented Feb. tlioniff A shaftas two of the 65 A machine is to be disconnected from the trucksect-ions of the shaft 6 and made fast there-- of the machine havedepressions 12 in their 17 and is mounted upon wheels 11 which areconstructed to travel upon the usual beam receives a feed screw 18,which is ver-' ed in bearings fitted to uprights ofthe main movedlaterallyby operating the crank 13,

communicated to the shaft. 6 through the of the feed screw 18 isconnected by means y and supports rights 19, longitudinal beams 20 andtransverse connecting beams 21. The upper'intermediate transverse beam21 has the lower end of the feed screw 18 connected thereto.Longitudinal beams 22 are connected to the uprights of the supplementalframe and project in front and in the rear thereof some distance. Thevertically movable frame supports a longitudinally movable frame whichcarries the engine and operating parts. The longitudinally movable frameembodies longitudinal beams 23 .which are connected by means of uprights24 and transverse ties 25. As shown most clearly in Fig. 5 the beams 23are arranged upon the inner sides of the beams 22 and have interlockingconnection therewith by means of a tongue and groove joint. A feed screw26 is mounted at its ends in bearings 26 and 26 provided upon thelongitudinally movable frame and has screw-thread connection with atransverse beam 27 su ported by standards 28 securedto the longitudinalbeams 22. As the feed screw 26 is rotated the longitudinally movableframe is ositively propelled in the direction 0 its length eitherforwardly or rearwardly according to the direction of rotation of thesaid feed screw. When the frame is moved forwardly the cutting mechanismis advanced into the bed of the material to be mined and when said frameis moved rearwardly' the cutting mechanism is withdrawn from the cut oropening. A bevel wheel 29 is made fast to the feed screw 26 and isadapted to be engaged by bevel wheels 30 and 31 secured to shafts 32 and33, which are mounted in brackets B secured to the forward transverseties 25 between the longitudinal beams 23. Belt pulleys 34 and 35 aresecured to the respective shafts 32 and 33 and drive belts 36and 37connect said belt pulleys to corresponding belt pulleys 38 and 39fastened to a transverse shaft 40 mounted in brackets C secured to thelongitudinal beams 23. The shaft 40 is positively driven from the engine41, which is mounted upon the longitudinally movable frame by means of asprocket chain 42, which passes around a sprocket wheel secured totheengine shaft and around a sprocket wheel 43 mounted upon the shaft 40.The bevel wheels 30 and 31 are adapted to be thrown into and out ofengagement with the bevel wheel 29 so as to rotate the feed screw 26either to the right or to the left, accordingly as it may be required toadvance or retract the longitudinally movable frame and the cuttingmechanism carried thereby. A shipper lever 44 is fulcrumed at 45 to abracket A attached to an upright 24 and its lower end is forked, thefork members engaging the bevel wheels 30 and 31 so as to move the samesimultaneously, thereby preventing both bevel wheels 30 and 31 en'- Yhave their end gaging the bevel wheel 29 at the same time. t is to beunderstood that when the lever 44 is moved to a neutralposition bothbevel wheels 30 and 31 are disengaged from the bevel wheel 29, therebyadmitting of the longitudinally movable frame remaining stationary.

A transverse frame is had at the outer-or forward end of thelongitudinally movable frame and comprises upper and lower cross beams46 and uprights 47. The cross beams 46 are longitudinally slotted toreceive the upper and lower ends of a transversely movable frame 48,which carries the cutting mechanism. The transversely movable frame 48comprises spaced uprights which ortions reduced, as indicated mostcleary in Fig. 2, and passing through the slots of the cross beams 46. Afeed screw 49 is mounted in bearings applied to. the uprights 47 and hasscrewthread connection with the uprights of the frame 48. Rotation ofthe feed screw 49 effects a lateral movement of the frame 48 and thecutting mechanism carried thereby. A drive belt 50 connects a drivepulley 51 secured to the feed screw 49 with a drive pulley 52 fastenedto a transverse shaft 53. A drive belt 54 connects a drive pulley 55loose upon the shaft 53 with a drive pulley 56 fastened to the shaft 40.A clutch sleeve 57 keyed to the shaft 53 and movable thereon is adaptedto be thrown into engagement with the drive pulley 55 and thereby causerotation of the shaft 53in one direction so as to move the frame 48laterally in one direction. A frictionwheel 58 secured to the shaft 40is adapted to engage a friction wheel 59 loose upon the shaft 53 andsecured to the clutch sleeve 57. When the friction wheels 58 and 59 arein engagement the shaft 53 is rotated in the opposite direction, therebyturning the feed screw 49 in a reverse direction to move the frame48'laterally in the opposite direction. When the friction wheels 58 and59- are in en agement the clutch sleeve 57 is disengaged rom the drivepulley 55. The clutch sleeve 57 may be moved to a position so as tothrow both the drive ulley 55 and the friction wheel 59 out of action,thereby admitting of the frame 48 remaining stationary. A shipper. lever60 is mounted upon a cross beam 25 of the longitudinal frame and engagesthe clutch sleeve 57 to enable convenient movement thereof.

Two shafts 61 and 62 are mounted vertically in the frame 48 and theirinner ends have bevel gears 63 and 64 which are in mesh with a bevelgear '65 loose upon a transverse shaft 66, which parallels the feedscrew 49 and is journaled at its ends in the end uprights 47 of thetransverse frame.

connection with the shaft 66 so as to ro- The bevel gear 65 has afeather and spline tate therewith and is movable with the frame 48. Asprocket chain 67 connects a sprocket wheel 68 fastened to the shaft 66with a sprocket Wheel 69 fastened to the shaft 40. It will thus beunderstood that the shaft 66 is connected directly to the power drivenshaft 40 and is driven at all times when the machine is in operation toactuate the cutting mechanism. A bevel gear 70 is secured to the upperend of the shaft 61 and meshes with a bevel gear 71 fastened to theouter end of a longitudinal shaft 72. A tool holder 73 is adapted to befitted to the end of either one of the shafts 61 or 72, as indicatedmost clearly in Figs. 6 and 7. When the tool holder 73 is fitted to theshaft 72 the boring tool 74 is adapted to operate horizontally, but whenthe tool holder is fitted to the shaft 61, as indicated in Fig. 7, theboring tool 74 is adapted to operate vertically. When the cutter is ofthe boring type the frame 48 is stationary with reference to any lateralmovement, but is advanced either longitudinally or verticallyaccordingly as the bore is to be formed in the wall or the roof of thedrift or passage being mined.

The horizontal cutter for forming a transverse cut in the bed of thematerial or substance to be mined is attached to the lower end of theframe 48 and comprises a frame 7 5, which is provided at its outer endwith a pulley 76 and at its inner end with a pulley 77, an endlesscutter chain 78 being supported upon the pulleys. The pulley 77 issecured to the lower end of the vertical shaft 62 so as to rotatetherewith. The straight cutter is advanced into the bed of the materialby the forward movement of the longitudinally movable frame, after whichthe frame 48 is moved laterally to cause the cutter to form a horizontalcut and when the frame 48 reaches the limit of its movement the cut ifdesired may be extended by returning'the frame 48 to the first positionand moving the truck frame 1 laterally, after which the machine mayagain be started. It is to be understood that the frame 48 may beadjusted to occupy a central position when advancing the cutter 78 intothe bed of the material to be mined, so that the horizontal cut may beformed each way from a middle oint.

The boring tool 74 may be 0 .any construction, but it is preferred tohave the same consist of a body studded upon its sides with wings 79which have an approximate longitudinal arrangement, said wings beinghollow upon one sic e and convex upon the opposite side and having theirfront ends curved and sharpened. The wings 79 are preferably arranged instraight lines and are spaced apart, the wings in one line beingarranged to break joint with the wings in the adjacent lines. The spacesbetween the wings provide clearance for the cuttings, thereby preventingthe boring tool becoming choked in the opening and enabling it to clearitself of the cuttings. The wings at the forward end of the toolapproach and touch a lane passing at a right angle to the axis of thetool.

In the operation of the machine the same is run to the required place ofuse upon the usual tracks and when the room, passage or drift is reachedthe machine is lifted from the main track and placed upon the truck 1 bymeans of which it is moved into proper position, the truck beingoperated by means of the shaft 9 and the intermediate connections. Afterthe machine has been properly positioned it is braced from the roof andwalls of the room or mine in the accustomed way. The supplemental frameis adjusted vertically to bring the cutting mechanism to the requiredelevation, this result being efi'ected by means of the feed screw 18. Ifthe opening is to be formed in the roof of the mine by means of theboring tool 74 the latter is fitted to the vertical shaft 61, asindicated iii Fig. 7, the tool being advanced by the vertical movementof the supplemental frame. After the cutting mechanism has beenpositioned it is ad.

vanced into the bedof the material by the" longitudinal movement of theframe provided with the feed screw 26, the lever 44 being operated tothrow the proper gear wheel 30 or 31 into engagement with the gear wheel29. After the cutter has been advanced to the required depth the feedscrew 26 is thrown out of action and the cutter is caused to movelaterally by proper manipulation of the lever 60 to throw the clutchsleeve 57 into engagement with either 60 and the cutter may be Withdrawnby moving the lever 44 to throw the feed screw 26 into gear soas to backthe longitudinally movable frame.

From the foregoing description, taken in connection with theaccompanying drawings, the advantages of the construction and of themethod of operation will be readily a parent to those skilled in the artto which t e invention appertains, and while I have described theprinciple of operation of the invention, together with the device whichI now consider to be the embodiment thereof, I desire to have itunderstood that the device shown is merely illustrative, and that suchchanges may be made when desired as are Within the scope of the claimsappended hereto.

Having thus described the invention what is claimed as new, is

1. In combination a truck mounted upon &

wheels, a shaft connecting two of the wheels, a mining machine framedetachably mounted upon the truck, an operating shaft mounted upon themining machine frame, a frame mounted upon each -of the before mentionedshafts, a sectional shaft having its sections mounted in the lastmentioned frames, gearing connecting each section of the sectional shaftto the respective shafts of the truck and the mining machine frame, anda coupling detachably connecting the two sections of the shaft.

2. In a mining machine, the combination of a main frame, a supplementalframe,

' mounted upon said longitudinally movable frame for imparting a forwardand a backward movement thereto, a laterally movable frame mounted uponthe longitudinally movable frame and provided with the cuttingmechanism, and operatin means for moving the laterally movable ame.

4. In a mining machine the combination of a supporting frame, atransverse frame carried by the supporting frame, a frame mounted uponthe transverse frame to move laterally and provided with the cuttingmechanism, a feed screw mounted upon the transverse frame andhaving-screwthread connection with the laterally movable frame, apower'driven shaft mounted upon the said supporting frame, anintermediate shaft mounted upon the transverse frame and geared to saidfeed screw, two sets of gearing between the drive shaft and the inter-.mediate shaft for rotating the latter inopposite directions, and aclutch for throwing one or the other of the two' sets of gearing intooperation to rotate the feed screw either to the right or to the leftaccording to the direction of movement of the frame provided with thecutting mechanism.

5. In a mining machine the combination of a main frame, a longitudinallymovable frame mounted upon said main frame, a feed screw mounted uponthe longitudinally movable frame and having screwthread connection witha fixed part of the main frame, a gear fastened to the feed screw,rotatable gears located upon opposite sides of the feed screw, a power.driven shaft mounted upon the longitudinally movable frame, powertransmitting means between said shaft and the rotatable gears, and meansfor moving said rotatable gears to throw one or the other into engaement with the gear of the feed screw to e ect a reverse rotationthereof to cause a forward or a rearward movement of the saidlongitudinally movable frame.

6. In a mining machine, the combination of a longitudinally movableframe, a laterally movable frame provided with cutting mechanism, a feedscrew for advancing or retracting the longitudinal frame, a feed screwfor the laterally movable frame, a

drive shaft, an intermediate shaft geared to the feed screw foroperating the laterally movable frame, two sets of gearing between thedrive shaft and said intermediate shaft including a clutch for throwingone or the other of the sets of gearing into operation, I twotransversely alining shafts, gearing between the transversely aliningshafts andthe feed screw for moving the'lon 'tudinal frame, gearingbetween the drive s aftand each of the transversely alining/shafts, andmeans for throwing one or the other of the transversely aliningshaftsinto gear with the feed screw of the longitudinally movableframe.-

In testimony whereof I afl ix my signature in presence of two witnesses.

' JOHN McDONALD.

Witnesses:

J. LINEAWEAVER, SAMUEL It. BEARD.

